Abstract: Through analysing the sedimentary rock system and the structural deformation, this article thinks Keipin uplift belongs to the north of Talimu craton. The major porpress of it's sediment evolution and structure evdution are identical with those of Talimu Massif. There are two major kinds of sedimentary rock system in the Keipin uplift; One of them is the steady platform facies sediment. The other is mainly made up of the cenozoic sediment, including salt seashore-legoon facies sediment, river facies and hillfoot facies. The Keipin uplift is the sturctural deformation which was set of by the gravity spreading, effect carsed by the south Tahshan thrust folded rising under the steady craton circumstance in the late Hereynian.